Sesamee padlock KO436 with 1-7/8" brass body, 5/16" Shackle, 1" vertical and horizontal clearance and 10,000 possible combinations. Automatic 0000 stop. All brass internal locking mechanism. Combination is quickly and easily set, and can be changed by the owner. KO436 Marine Version Supplied with Brass Shackle. One combination reset tool included with each padlock.