Product Description Spurs made of antique -brown iron, heavy-duty quality. With engraved German silver plating and a gentle, 10 point rowel O-Ring Material Temperature Range Chart - Wyatt Seal [Use Environment]: O-rings use soft rubber structure to enhance durability, and can be used for a long time in static and dynamic cylinder accessories; Suitable for home, hydraulic, industrial and pneumatic applications yangh] High Temperature Resistant Sealing Strip 9 Shape Auto Rubber... [Soft Rubber Construction]:O-Ring assortment kit use soft rubber construction to enhance durability for long-term use in static and dynamic cylinder fittings; Corrosion resistant, high temperature resistant, wear resistant [Commercial Grade NBR Material]: Rubber o-ring assortment kits are made from commercial grade nitrile rubber (NBR) material to withstand lubricants and greases; great water and oil resistance, good sealability [Easy to Storage and Use]: NBR rubber o-rings and rubber o rings assortment are stored in a sturdy transparent plastic box with labels, more convenient to store and carry, buna high temperature o rings, buna o ring O'ring Assortment Kit Special-shaped Nitrile O-ring High Temperature Resistant Rubber O-ring Pressure Washer O Ring Kit