Lolumina 13MM Diameter Gold MK.II Soft-Release Button Complete Kit for Fujifilm X-T1 Sony A7 Complete Kit: Includes Soft-Release Button And Mounting Base.For cameras with NON-THREADED shutter release buttons Aerospace Grade Anodized Aluminum Soft-Release Button.T304 Stainless Steel Mounting Base Different Bases To Match Your Shutter-Release Button. Industrial Grade Adhesive Removable + Leaves No Residue. New Size: 13.5mm diameter. 10% smaller than Original.