THE cube is our accessory to adapt GREEN, BLACK or SILVER pods to work with DSLR's and battery grips. It is a 2 square inch cube of foam covered in ripstop nylon and has a Velcro base. The Velcro base is made to attach itself to the Velcro pad on the top of either the GREEN, BLACK or SILVER pods. THE CUBE does not qualify for free shipping if purchased on it's own. If you want to buy just THE CUBE please contact us to find out rates for your destination. PLEASE NOTE THAT THERE IS NO FREE SHIPPING ON THIS ITEM WHEN PURCHASED SEPARATELY. FREE SHIPPING WILL APPLY WHEN PURCHASED WITH A REGULARLY PRICED POD.