Topic Explanation:
The forum topic is about a user who received free ostomy bag samples from Hollister, which are lock and roll type, and is seeking guidance on how to use them as they are used to the little clip closures.

Advice and Insights:
- The lock and roll ostomy bags from Hollister can put up resistance if folded the wrong way. One side will have a rough surface, and it should be on the same side that the locking top portion is on. Then, push the two together and slide your thumb along the top portion to lock it.
- If unsure about using the lock and roll bags, contacting the company for assistance is recommended.
- Roll the opening up the same way as with the current bags, and press the Velcro firmly until sealed. Some lock and roll bags make a popping noise when pressing the Velcro to reassure that it's locked.
- Hollister bags can be a little hard to open the first time, but rubbing it between fingers and thumb can help. To close it, fold it up until two Velcro pieces are facing each other and squeeze together.