Price is for 5 wheelsfit HO or OO tracks Functions: 100% Brand new and high quality.NMRA Standards-4.2 (Suitable for Wheel Code 88, 110, HO Scale 1:87).PRODUCT DESCRIPTION Material: Coppery core Nickel plating.with isolated ring between 2 wheels parts.Size:as the pictures show.Scale:1:87,Suitable for HO scale. it OO tracks tooColor:black.no paper instruction/wiring, please come back to this page to check the informations when receive ...