I stored this for a year without using it. Size (approx.): Width 100cm x Length 225cm, set of 2 Clear, light-transmitting clear type N Cuts cold and heat that come through gaps in windows and curtains. Improves heating efficiency in winter! Improves cooling efficiency in summer! Maintains room brightness! Maintains the view outside! Install between the window glass and curtains, and simply hang it on curtain hooks. Cuts outdoor cold and heat! Prevents indoor heat and cold from escaping! Can be easily cut with scissors or a utility knife. UV cut rate: approx. 99%, Light transmittance: approx. 90%, Antibacterial, Anti-mold Material: Liner/100% Vinyl chloride resin, S-hooks/Polypropylene I hope someone will use it.