300 x BP4 230mm x 285mm High-Quality Clear Bubble Wrap Pouches | Self-Seal Peel & Stick Bags | Multiple Sizes | 100% Recyclable. BP4: 230mm x 285mm + 30mm lip. Self-Adhesive Peel & Seal Flap: 30mm peel-and-seal strip allows fast, secure sealing - just pop your item in the bag and seal.
eBay