what size is the opening to hold a cup? what diameter cup can it hold?

The lower cup has no role in holding any cup. As for the upper cup, a 30oz YETI Rambler doesn't seat to the bottom of the cup. Only about 2/3 of the YETI tapered bottom, fits into the cup, so the Robo-Cup is holding it via friction fit, NOT because the cup ever properly seated on the bottom.

will it hold a red solo cup?

Yes it does and in addition we now also have available the RoboCup Plus as an add-on accessory which holds large sized drinks. Thank you. -- RoboCup Family

does it clamp onto a beach umbrella

Yes it will. It is very powerful and can be difficult to open widely to attach to larger diameter objects. it works on my beach umbrella, my favorite chair, and rolling tackle box. My umbrella is no larger than one inch diameter. It could be difficult for larger diameters, but I love it. Very durable.

Will it work on a bike?

Yes it does on the seat post and works great as a portable fishing rod holder.

Robocup Black | Desertcart French Polynesia

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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8428F

Duties & taxes included

In stock

Sold byAmazon French PolynesiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to French Polynesia.

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Description

🚤 Stay hydrated, organized, and ahead of the pack with the ultimate clamp-on caddy!

EXPANDABLE ECOSYSTEM - Upgrade with RoboCup accessories like Plus, Holster, and Plate to customize your setup and never miss a beat.
MARINE GRADE DURABILITY - UV-stabilized polymer and stainless steel hardware resist rust and harsh environments for long-lasting use.
MULTIFUNCTIONAL STORAGE - Unscrew bottom end caps for drainage and extra storage—perfect for nets, gaffs, and more.
DUAL DRINK GEAR MASTER - Securely holds 2 drinks plus fishing poles, tools, and essentials for ultimate convenience on the go.
CLAMP ON NO TOOLS NEEDED - Powerful rubberized clamps attach instantly to round or flat surfaces up to 2”—no tools, no hassle.

The ROBOCUP is a patented, portable clamp-on cup holder designed for boats, golf carts, strollers, and more. It securely holds two drinks plus fishing poles and tools, clamps instantly without tools to surfaces up to 2 inches, and features rustproof stainless steel springs and UV-stabilized polymer for marine-grade durability. Its multifunctional design includes drainage and storage options, with upgradeable accessories to tailor your setup. A top-rated, versatile solution for active professionals who demand convenience and reliability on the move.

Specifications

ASIN	B0065MYZGW
Automotive Fit Type	Universal Fit
Best Sellers Rank	#12,959 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #2 in Boat Cabin Storage
Brand	ROBOCUP
Brand Name	ROBOCUP
Color	Black
Customer Reviews	4.7 out of 5 stars 5,593 Reviews
Global Trade Identification Number	00733572077551, 00856341001011
Hand Orientation	both
Item Dimensions L x W x H	9"L x 4.5"W x 6.5"H
Item Weight	12 ounces
Manufacturer	ROBOCUP
Manufacturer Part Number	07-101-B
Material	UV Stabilized Polymer
Material Type	UV Stabilized Polymer
Model Number	07-101-B
Number of Packs	1
Product Dimensions	9"L x 4.5"W x 6.5"H
UPC	733572077551 856341001011
Unit Count	1 Count

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

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Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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TrustScore 4.5 | 7,300+ reviews

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Great price for an authentic product. Fast international shipping too!

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8428F

Duties & taxes included

In stock

Sold byAmazon French PolynesiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to French Polynesia.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Imran F.

Very reliable shop with genuine products. Will definitely buy again!

2 weeks ago

Neha S.

Excellent communication throughout the order process. Product is perfect.