The SilentScape ceiling panels are always recommended for perfect acoustic comfort; they consist of blocks with 11 baffles, totaling 120 x 120 x H .‎21 cm.‎ You can choose from 25 colors and 5 different designs.‎ Sold in a set of 11 baffles, including hooks.‎Our eco-friendly line made of 9mm recycled PET features highly decorative panels that are easy to install.‎All materials are fire-resistant and certified as follows:Acoustic absorption class PN-EN ISO11654 αw = 0.‎85, class BFire classification: B-s2, d0 fireproof (ITB report of the installed product)