Features:*Made of superb material, and lifelike to use*【Easy to Install】No groove required for door. No holes drilled within the floor. It doesn't take a lot time to install.*【Application】This guide wheel is dedicated to computerized doors, sliding doors, framed doors, wooden doors, metal doors. Meet all of your needs.*【Excellent Design】The silver outdoors design meets maximum ornamental styles, both beautiful and practical. It suits superbly with all kinds of doors.Specifications:Material:SteelSmall size of 7.5*3.5CMLarge length of 10*4CMPackage Contents:1*Door Floor GuideNote:1. The genuine shade of the item may be slightly assorted from the photographs shown on online page attributable to many factors comparable to brightness of your video display and light-weight brightness.2. Please enable slight manual dimension deviation for the data.