P610746 Prym non-slip tape. The non-slip tape is an inconspicuous aid, which is absolutely secure, thanks to the 3M adhesive. Simply peel off the film on the back and stick to the clean, grease-free inner side of the shoulder strap. This stops your bag from slipping off your shoulder - and leaves your hands free. Non-slip tape for bag straps is available in black, brown and beige. 610746 black 1pc