It's a great value set! This is a set of 【Hinoki Stage 1 piece】✕ 【Hinoki Steps 3 pieces】! This set does not include a replacement service. Thank you for your understanding. (*_ _) It's a set of the usual Hinoki stage and board steps, so it's a great help for those who have trouble getting up and down! Some are sleeping on the floor, but they actually want to look down from above, but they can't climb up, so they're enduring it. Let's create a comfortable room for them d('∀'*) ♪ Run⋆⸜(* ꒳ * )⸝Run ʓ Խ♬( * ꒳ *)ʓ Խ♬ You're on a roll! ( °◊° ) Whoa 【Hinoki Stage】 1 piece Width: approx. 14cm ✕ Length: 8cm Thickness: approx. 12mm Washer diameter: 2.5cm = 4 pieces 【Hinoki Board Steps】 3 pieces Width: approx. 4cm ✕ Length: approx. 8cm Thickness: approx. 12mm Washer diameter: 2cm = 6 pieces