● This type is specifically designed for thresholds without rails. The nylon resin wheels are quiet and rust-resistant. ● The 36mm wheel size is ideal for windows and sliding doors approximately 1500-2100mm in height. #DIY Tools_rswn 【Important Notes】 Price reductions are not possible. 【Shipping】 We generally aim to ship on the same day as payment confirmation. Shipping is not available on weekends and holidays. Please understand. Inventory (5)