The QJ-06 double-lock quick-install clamp, which is the perfect addition to your photography equipment. This high-quality product is constructed from durable aluminum alloy, ensuring its strength and reliability for all your photography needs. The dual-lock quick-release clamp is designed to be compatible with Aka’s standard 38mm wide quick-release/quick-release plates, making it a versatile and essential tool for any photographer.The holder measures 50x50mm and the card size is 38mm, with the added benefit of being able to be used with the PU-50A Quick Packaging Board. Its dual-lock design ensures a safe and stable hold, giving you peace of mind while capturing the perfect shot. Made to Arca Swiss standards, this clip-on seat is a must-have for professional photographers and amateurs alike.