Very thick strong cardboard. The only downside was that the caps were consistently tight on one side but slightly looser on the other side.
Fuxury Pink Anti-Static Bubble Cushion Wrap Roll Air Bubble Roll 1 Roll 36 Feet
3 Review
π¦ Perforated Stickers Packaging for Cushioning during Shipping
3 Review
π Luxury Air Bubble Cushion Wrap Roll - Fuxury Bubble Roll
3 Review
Honeycomb Cushioning: Eco-Friendly Biodegradable & Recyclable Wrapping Solution
3 Review