Soft Earplugs, Set of 10 Pairs (20 Pieces), Green Lowest Price! This is a bulk discount item for a set of 5 pairs (10 pieces). Noise Reduction Rating: 35.5~40dB Diameter: 13mm Length: 23mm ★ A set of 5 pairs (10 pieces) is 300 yen, a set of 15 pairs (30 pieces) is 666 yen. Further discounts are available for bulk orders. If you are interested, please tap the seller K-TURN and select the discounted item, or let me know in the comments. ★ We also offer combined purchases with other 300 yen items, such as smartphone finger sleeves and conductive fiber touch pens. Two items for 500 yen, three items for 666 yen. If you are interested, please select the items and request a combined purchase, or consult in the comments. Comfortable soft material Polyurethane Slow rebound Soundproof For studying, swimming, sleeping, construction sites, professional use, industrial use If you do not want your address to be known, we can change to anonymous shipping for an additional 90 yen. Please let me know in the comments. Thank you. Earplugs Household goods Daily necessities Green 10 pairs 20 pieces