These black PP plastic caps are available in a variety of sizes and come with PE liners. The PE liner is a good general-purpose liner material. These polypropylene PE lined closures are also ribbed for better grip when twisting the cap on and off
| SKS Science Products | |
|---|---|
| Product Category | Caps, Grips, and Closures |
| Product Number | 2101-18 |
| Material | Polypropylene (PP) |