I have two pair of Timbren bump stops. Just the bumps, no mounting brackets. Work well as a cheaper alternative to air bumps.
The first pair is part # 530 and is on the pic on the left. The second pair is par # 515 and is on the right.
I'm not sure what version they are, but the specs on the variants are in the link below. I'll see if I can track it down.
Looking to get $75/pair for them. Willing to ship or pickup near M-59 and US-23.