These STIHL hedge trimmer 20 inch blades 4237-710-6050 are designed to fit HS 81 R, HS 81 T, and HS 81 T-Z models. Made in Germany, these high-quality hedge trimmer blades are the perfect upgrade to your Stihl hedge trimmer to maintain any yard or garden. With the STIHL brand name, you can trust in the durability and performance of these hedge trimmer blades. Get yours today and start trimming with ease!