This nose drill shoulder strap can be adjusted in length, but due to its material, it is not as elastic as the shoulder strap. If the shoulder strap is too tight, the anti slip effect will increase and the comfort will decrease. If the shoulder strap is long, the anti slip effect will decrease and the comfort will improve. Therefore, it is recommended that if there is double-sided tape, it can be used to simply fix the shoulder strap. This can prevent slipping and achieve better comfort. (Not applicable for glue allergies)