Reorda Self-Adhesive Metal Tape for Magnets (White) – Can be Cut to Size, Durable, Flexible Ferroband with 12 Colourful Magnets, Length 6 m, Width 4 cm

This is the best product to close Light Gaps on the sides of your roller blinds! Here is how:1) Stick the white metal tape on the window frame or wall behind where the roller blind comes down, and2) Once you lower the roller blind, stick the roller blind to the window frame or wall behind it using the magnetsGreat for letting your baby and toddler sleep longer, growing taller, stronger, etc., etc.