I purchased a Fitterfirst slide second hand that came without the bumpers. I ordered the replacement bumpers on line and they were delivered to me quickly and as promised. They were accompanied by a good pair of slide booties and a small can of Armorall to lubricate the slide. Both were great add ons. The bumpers themselves are well made and the locking system to attach them to the slide is easy to use. I gave this a 4 star review rather than a five because I think the bumpers show a tendency to unlock a touch too easily. This may be nitpicking and I am pretty close to giving it a five star rating. I think it is a very good product and recommend it without hesistation.