This cock cage can make in 3 lengths.Check the picture,it shows how to make 3 lengths for full length. Chastity Cage Full Length Options you can choose: S-55mm(2.16") M-65mm(2.56") L-75mm(2.96") Penis Tube Diameter:32mm/1.26" Base Ring Size:40mm/45mm/50mm(1.57"/1.77"/1.97") Base Ring Options you can choose: 40mm ring(1.57inch) 45mm ring(1.77inch) 50mm ring(1.97inch) 40mm ring+45mm ring (1.57inch+1.77inch) 45mm ring+50mm ring(1.77inch+1.97inch) Need other size base ring with this cage,select “customize size” to place order. Feature: Using the method of integration of carving and the use of superb craftsmanship, minus the most solder joint structure, make the cages look very elegant. Raw material is pure stainless steel, never rust, warded lock is brass material, also not rust. The reason I offer 2 sizes base ring is to let customer can has 2 sizes ring to try,especially good for the beginers because they are not sure which size would fit them the best. Curved oval base ring is available for this cage,check the last profile picture. If you want this kind of base ring with cage,please leave a note to speak your this demand. Otherwise cage with round ring is sent by default.