I liked that I could attach them to the sides of the solar panel and then just screw them to the roof. They hold the panel high enough for me to install on a metal roof and clean out the ledges. I have yet to use the solar panel where I could use the long screws that come with the kit to attach the bracket to the panel (hence the 4 stars) - I used some small short sheet metal screws I already had.
Bit and socket set Stels Tool set, 1/2", 1/4", CrV, plastic case 94 pcs, Stels, 94 pcs, black
46 Review
Tool set Ombra OMT82S12, 82 pcs, brown
22 Review
Reversible Mi 16-in-1 Ratchet Screwdriver
21 Review
Xiaomi Mijia Ratchet Screwdriver 16 in 1 Screwdriver with Interchangeable Bits, 10 pcs, Black
22 Review