This transverse divider

cross-linked polyolefin heat shrink tubing designed for low-voltage electrical and mechanical protection

This application is directly evident from the manufacturer's product text

The manufacturer's documentation describes the split point grinding (DIN 1412C) and the specified standard DIN 338 N

where the insulation is integrated into the blade itself

Pose SCS 1000 ESD Open Top 255x355mm pk á 100 stk MIL4906121354 This transverse divider. 3M Static Shielding Bags, both SCC 1000 and SCC 1500 are tested to comply with ESDA, industry and customer standards. Cost effective metal in bags and high protection metal out bags allow you to meet protection requirements for a wide range of device sensitivities.