Great line up dots! If you're gonna walk on them the write on wipe off layer may peel but they stick great, are bright and fun, and definitely worth the buy!I am using these vinyl floor dots for student lineup in my 2nd grade classroom. They stick really well and are large enough that students can see where to stand. I love the colors and even after the custodians sweep and mop the floor, the spots have stayed on the floor. I plan to return to give a summary at the end of the school year when I'm required to remove the dots from the floor.My only complaint is that the red looks like a deep orange rather than redI needed a system to keep my kindergarten students in their spots. Carpet squares wasn't working because the kids slid them around and peeled the carpet apart. I ordered an 8'x10' carpet with geometric sequences but it was too small for all the kids to be physically spaced out per Covid guidelines. These floor stickers are working well. The only downside is that after only a few weeks a few circles have begun to peel up and a few students have peeled off the top layer/coating. But, they are definitely a better option for my classroom than anything else I've found!!Super annoyed the red is orange. Hard to tell kids they’re on a red row. Especially K/1. Half of them are peeling after 2 weeks. :(Cute circles for the classroom but are said to work on the floor and flat surfaces and already peeling and coming up after a month of school. Sad.I’ve been using my first set and they survived an entire school year. I purchased a second set for stools and for marking tables. I highly recommend.These are nice and large. But i adhered them to the floor and they came up after 2 weeks. Peeled, split and buckled. VERY disappointed.