Two-piece HD rings, 4 bolts for each scope clamp, and 2 bolts on each ring for the rail clamp. Also, one has an adjustable recoil pin (you can adjust the depth or retract it completely without removing it).
The kit came with 3 allen wrenches, an extra recoil pin, and an extra bolt for the rail clamp and for the scope clamp.
Not bad for $7.00