The ColoGide is derived from bovine Source, Its is a resobable, non-friable barrier membrane obtained from highly purified Type- l collagen derived from specially  controlled and certified animals and is highly purified to avoid any antigenicity. • GTR membrane • Guided Tissue Regenerative Membrane for dental procedures • Sizes: 10X15mm• Sizes: 15X20mm• Sizes: 20X32mm