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KCP-616 KUPO Duck Bill Clamp



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The Kupo Duckbill Clamp, (also known as a Quacker Clamp, Platypus, Onkie Bonk, or Lips), has been designed to enables you to mount modifiers such foam reflector boards, bounce cards, reflectors and flags to stands or other studio grip equipment. It features a Large 7" Duck Bill Plate with a a metal jaw, designed to securely grip onto flat surfaces up to 4.5" (approx. 11cm) thick. It features a 5/8" baby pin stud, which enables it to be mounted to grip-heads or any stand with a baby-pin receiver.

KUPO KCP-616 Duck Bill Clamp

Large 7" Duck-Bill Plate

The Kupo Duckbill Clamp features a large 7" aluminium Duck Bill plate, which enables it to firmly grip onto flat surfaces up to 11cm in thickness. Due to the duckbill plate's relatively large surface area, it makes it idea for holding accessories  such as bounce cards, foam core boards and flags to a stand. Due to its larger surface area, it also reduces pressure on your boards meaning they are less likely to be damages by the clamp itself.

KUPO KCP-616 Duck Bili clamp being used to mount a foam core board

Metal Jaw with 5/8" Baby-Pin

Attached to the large metal plates is a strong a durable steel jaw, that has been designed to grip your items securely.  The clamp jaws have a steel baby-pin stud welded onto the main clamp. The baby-pin features  an embossed neck design allowing it to be securely mounted to a for a secure connection to a stand with a baby receiver or a grip head.

The Kupo Duckbill Clamp is an essential accessory for any studio photographer who is looking for a quick and simple solution for rigging flags and bounce cards to their set, 


  • The duckbill clamp holds things like foamcore, boards, flags, and cards.
  • It's easy to put on flat surfaces and has adjustable tension to protect your items.
  • The clamp can hold flat things up to 4.5" (11cm) thick.
  • Attaches securely to a baby receiver or a grip head with a steel stud.

What’s In the Box

  • 1x KUPO Duck Bill Clamp



Plate: White

Clamp: Silver


Plate: Aluminium

Clamp: Steel

Mounting5/8" (16mm) Baby Stud
Compatible WithFlat Items up to 11cm thick
Net. Weight0.89kg


Delivery & Returns

UK Delivery Rates

Free UK Standard delivery on orders over £150.00*

Order Date (if received before 3pm) Cost Latest Expected Delivery Date
UK Standard Delivery (Orders over £150*)  FREE 2-4 Days
UK Standard Delivery £3.99 2-4 Days
UK Express Delivery £5.99 1-3 Days
UK Next Working Day £8.00 Next Working Day
UK Next Working Day (Guaranteed) £15 Next Working Day
UK Before 2pm Next Working Day £18.00 Before 2pm Next Working Day
UK Saturday Delivery £30.00 Saturday
UK Sunday Delivery £30.00 Sunday

View a full breakdown


EssentialPhoto is committed to the provision of quality and reliable products and outstanding customer service. Buyers are entitled to cancel the order and return the goods within 28 working days for a full refund of the purchase price of the goods.

Read our full Returns Policy

International Delivery Rates

We are able to ship from our UK based warehouses to many countries around the world. Click below to check shipping rates to your country.

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Additional Shipping Fees

Please Note, a number of our products fall into 'Large', 'Extra Large' or 'Oversized' products, and would require an additional shipping fee applied automatically to the order. All of these products will display this on their dedicated listings, and further information regarding these fees can be found below.

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International Delivery Rates

We are able to ship from our UK based warehouses to many countries around the world. Click below to check shipping rates to your country...

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  1. We will match our competitor’s current store or website price - this will apply to a UK based company only, the stock location must be based in the UK (no grey imports).
  2. The competitor’s item must be brand new, identical to ours, and offered on the same terms.
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