OTOTEC Electric Roto Starter Back Cover Backplate 11011 12mm Start Rod With Screws Compatible HSP 1/10 16/18/21 Nitro Engine RC Model Car Part

[Application]: Compatible With: HSP 1/10 1/10 16, 18, 21 nitro engine only. [Dimension]: 12mm hex in the center, and distance between center of fixed holes across top right top left is 27mm. [Package List]: Contains 1 pc 11011 12mm backplate, 1 pc starter rod and come with the acrew accessories. [Durable Material]: Made of high quality plastic and metal, not easy to bend, have long service time. [Note]: Not fit for engines larger than .18 (.19 + etc) and 1/16 engines (.07 or .05 for example)., Manufacturer: OTOTEC