Our noise-reducing sleep earplugs are carefully formulated from PU polyurethane sponge. Designed to relieve stress on the ear canal. How to use is extremely convenient: Clean the ear canal before use. Knead the earplugs into slender strips. Press gently until the earbuds rebound completely. It also adopts a high-density structure, which can effectively block external noise. Net content: 5 pairs Product name: Noise-reduction sleep earplugs Keywords: Body care Gross weight: 25g Packaging size: 8.5 x 5.8 x 2cm Product size: 8.2 x 5.5 x 1.7cm Box meter: 56 x 36 x 21.5cm Weight of one box: 5.22kg Shelf life: 3 years Storage method: Please store it in a cool and covered area Material: PU polyurethane sponge Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.