Plastic Slim-line Finger Clip Clothes Hanger Clips (60, Grey) Maximum opening size of this clip is approx 10mm. Strong clamping force to prevent being blown off your clothes. Perfect working with slimline hangers, ideal for thickness of 4 - 6 mm hangers. Material: Plastic; No metal parts for protecting your delicate fabrics. Beautiful appearance and smooth edges. Use to clip pants, shirt, skirts, bras, socks ect.