The OEM NOS STIHL Collar 4137-716-6500 is a high-quality clamping piece designed specifically for STIHL 2-stroke engines. This collar is compatible with the STIHL brand and is suitable for use with concrete chainsaws. Made in the United States, this collar is a genuine STIHL product that requires no assembly and comes in a pack of 1 units. It is a reliable and durable component for outdoor power equipment, perfect for maintaining your yard and garden tools.