Yes, they have spikes that hold them in place on top of my lucid mats. However after I put them in place, I realized that the spikes may be too sharp and may puncture the leather on the OEM mats, so I used a knife to cut off 4 rows of spikes which will go on top of the leather and that worked. The mats still stay pretty firmly in place and sometimes need to be adjusted slightly.I'm strongly considering the transparent ones. Any further feedback? Do they do a good job staying put?