Official documentation is available from the manufacturer: See datasheet from the manufacturer

Material: polypropylene

This is directly stated in the manufacturer's product description

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an ET M long chisel soldering tip designed for precise and repeatable soldering

Prøveled. 1mm² silicone 1,0m grøn SARK-4N-S10 vinkel/lige 1000V/19A CATIII Unit(s):Pcs Official documentation is available fromTest Lead: STAUBLI SARK 4N S10 (item no. 66. 1050 *) This test lead from STAUBLI, SARK 4N S10 (item no. 66. 1050 *), is specified as a test accessory according to IEC EN 61010 031. The product is a flexible lead with 4 mm MULTILAM plugs at each end, with one end being in line and the other angled. The lead is designed for electrical measurement connections and features a technically and neutrally described construction type without additional