Product Description: -Quantity: 10pcs, 50pcs, 100pcs (optional) - Model: 20er-M3, 20er-M4, 20er-M5 (optional) - - , - This stainless steel saddle with grooves is suitable for type I aluminum profiles with 5mm hole. Its shape allows it to be rotated at any point on the contour.-This means: no annoying pushing from the side. The spring ball always presses the sliding groove against the profile opening from below. The guide rod on the groove nut ensures that it is always in the center of the groove.-For maximum flexibility, these nuts are one of them.-Material: Carbon Steel-Surface: Nickel Plated-Groove Width: 5mmPacking List:10/50/100*Marble Nut (Optional)Notes:1. Due to various factors such as display brightness and light brightness, the actual color of the product may be slightly different from the picture on website.2. Please allow slight deviation between the data and manual measurement.