Hook and loop fasteners consist of two layers of fabric. The hook layer is covered with tiny hooks and the loop layer is covered with tiny loops. Hook and loop fasteners are commonly known as Velcro®. Velcro is a registered trademark of Velcro Ind.
Rivets are headed pins with a point that passes through two pieces of material. Beating or pressing down the point causes it to spread out and form a second head. Rivets can be used to connect two plates or pieces of material together.