Mobile home and RV anchor sets in a wet cement slab. Use anchor in conjunction with slotted bolts (part # 2010) and straps (part # 2694 and 2680) which are sold separately. The head of each anchor accepts 2 bolts for two straps. Generally one strap leads to the frame, the other over the home or camper. Head of anchor should set as close to the top of the cement as possible. Rod below the head measures 8" with a 3" hook.