1.Section Right Angle Edge Slope Sill Pad assists your robot vacuum to across the threshold(1-3 CM height), make the cleaning more extensive and efficient. 2.WIDE COMPATIBILITY -- The ramps door threshold widely applicable to all kinds of sweeping robots. Compatible with for / for / for , etc. 3.PREMIUM MATERIAL -- Robot vacuum threshold ramp designed with TPE soft plastic, it can be bent freely, and the design is not easy to .The bottom tape adopts non-marking double-sided tape,help fix to the ground without leaving marks. 4.Rounded edges for full-angle climbing. Adjustable length modules, combine them according to your actual needs. 5.for Cloud whale// //Cobos/ Sweeping Robot Material: plastic Colour:black Package Contents: 1 set x Household Threshold Bars Ramp Mat Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.