When I first received this Velcro Strips set, I thought the company made a mistake in giving me only the "hook" sides and not the fuzzy fiber side. But once I read the info and instructions, I realized this set of Velcro tabs were indeed the correct set. The strips contain "hooks" on both parts; and when pushed together, form a very tight connection! The box stated they would hold up to 10 pounds; I'm sure this would work for items weighing up to 10 pounds of static load...not any swaying load. So far, I have used these velcro strips for a couple of projects where the items I have attached are not meant to be permanent; frequent on/off of the item is necessary. The first use was for mounting a battery-operated flourescent light on my work bench. The light fixture had magnetic mounting hardware; however, my workbench area is mostly wood. So, I fixed two sticky-back Velcro tabs to the light fixture, and two corresponding Velcro tabs to my workbench. Works great; the light fixture weighs about 3 lbs, and once the Velcro tabs are pressed together, the light fixture holds really well. My other project was securing my coffee thermos to a side wall on my boat; the thermos now sits firmly against an inside wall under the dashboard. Only used one pair of Velcro tabs for this project, and my thermos has not jarred loose yet, even with moderate speed on choppy water. When using these Velcro strips, make sure you firmly press both parts together to get a tight connection. Both parts of the Velcro strips have to "interlock" in order to secure the item. Conversely, when pulling apart, you need to firmly grip your item and slowly pull it apart. The sticky side of the Velcro tab that connects to your mounting area is very sticky; only time will tell if it holds up to regular off and on applications (like my coffee thermos and shop light.) But even if it does tear loose, extra strength double sided tape will repair this easily. Just make sure you clean the surface really good before applying a Velcro tab. And naturally, a smooth surface is better for adherence versus a rough or uneven surface. When you want to mount something that has some weight to it (under 10 pounds) and that object is not subject to movement or constant jostling, these Velcro strips are the ticket!