From Foot Petals, the No-Slip Grips- Pack of 2 Pairs features: Includes 2 pairs of non-slip stick-ons No-slip grips add traction to the bottom of all shoe types to prevent slipping and sliding on slick surfaces Slim, discreet design Protects outer soles from wear and tear, and adds extra tread to bottom of shoes Adhesive backing for lasting placement, not recommended to remove and reuse Made in the USA.