The design of the 3M? Dual Lock? SJ457D clear hook and loop tape is made up of mushroom-shaped stems. When the stems have combined they interlock together, thus generating five times the closure strength of a typical hook and loop fasteners.

The SJ457D hook and loop tape contains 100 mushroom-shaped stems per cm2. When joined, the stem snaps back into its original position, interlocking with the opposing heads and an engaged thickness of 1.7 mm. This system can be opened and closed 100 times before losing 50% of the original tensile strength.
Double-sided adhesive tape for temporary assembly. Clear polypropylene.
Composition is identical on both sides. Assembly can be performed in any direction.
Thickness: 1.7 mm adhered.
Highly resistant to cutting and peeling.
Easily adjusted. No holes or drilling required. Transparent assembly.
Can be opened and closed up to 50 times.
Ideal for applications requiring infrequent opening/closing. Can be used when the thickness of other Dual Lock products is unsuitable or when substrates are too thin.
Sold in packs of 2 x 5 m length mini-rolls.