The general recommendation is to get the one(s) from Jon (John?) Goodman. Better quality material, better fit. Includes basic tools, IIRC, and doesn't need adhesive backing for the in-groove strips to stay in place (ones on a flat still have sticky back).
The general recommendation is to get the one(s) from Jon (John?) Goodman. Better quality material, better fit. Includes basic tools, IIRC, and doesn't need adhesive backing for the in-groove strips to stay in place (ones on a flat still have sticky back).