Most Led strips are self-adhesive at their back and stick to certain surfaces. This is working in many cases on smooth surfaces. But we found that these technique is not perfect under many circumstances. So I designed a clip which can be screwed (with one/two screws) or glued. You can print a bunch of those clips and attach your strip with a clip every so centimeters. The clips are designed so that they don't obstruct the light of any Led. I have good experiences printing 20 in a bunch on a cheap SLA printer (Mars Elegoo 2Pro). The material cost is less than 2 ct. per clip. My printer produces 18 clips in under 20 minutes.