Check the listing for details. CCJH 2 PC Adjustable Wall Mount Floor Guide with Roller for Sliding Barn Door. Color: Black, Condition: New. Listed at 19.99 USD. 2 Pack Adjustable Wall Mount Floor Guides with Roller for Sliding Barn Door ITEM DESCRIPTION 【Material】2PC Adjustable floor guide for sliding barn door; durable high quality aluminum with smooth nylon wheels. 【Parameters】Length :2.36 in-3.66 in; Width :1.18 in; Height :2.2 in; Roller diameter :1.45in. 【Easy to Install】Install on the wall with screws, the door does not need grooves. Don't drill holes in the floor. 【Advantages】 The smooth surface also prevents the door from being scratched during sliding; Adjustable floor guide is more flexible than the ordinary floor guide; Variety of installation methods are suitable for almost all types of doors. 【Quality services】 100% refund guarantee; professional customer service team can help you solve the problem immediately.