3M 04862 1 Inch By 1 Inch Clear Lock Fastener Pack Of 4

1 inch by 1 inch, pack of 4, clear, dual lock reclosable fastener, hundreds of mushroom shaped stems interlock when the 2 sides are pressed together, snap announces that the fastener is engaged, apply at temperatures above 50 degrees fahrenheit, 10 degrees celsius, make sure surfaces are clean and dry, do not use on car mufflers, furnace exhaust tubes, or anywhere temperature exceeds 300 degrees fahrenheit, 149 degrees celsius.