スノーピーク インナーネット 26

The product you referenced, with the barcode 4960589183937, is likely the "Inner Net 26" from Snow Peak, a well-known brand specializing in outdoor and camping gear. The Inner Net is typically used with their tents to provide an additional layer for bug protection and ventilation while camping.
If you're looking for more specific information regarding this product—like its features, compatibility with particular Snow Peak tents, or where to buy it—please let me know!