Product Specifications：The Package contains 27 pieces Polycut Blades is 4" Long 0.475" Diameter, enough for you to replace or backup in daily life. Quality materials：This replacement poly cut blade are made of nylon material, durable and not easy to break, you can use them for a long time, or share them with your friends or family members Fits models：Compatible with FS55 FS56 FS70 FS80 FS90 FS94 FS110 FS130 KM55 KM56 KM90 KM94 KM110 KM130 and Compatible with Trimmer Heads: 4002 710 2176 4002 710 2189 99906-1566 385-74 Replaces Part Numbers：531031067 531030329 4111 007 1001 390-040 55-460-1 7141 b1st75 High Quality Service：If you have any dissatisfaction with the product upon receipt,please contact us in a timely manner.We will provide you with the most satisfactory response This trimmer head replacement blade set is Compatible with FS44 FS55 FS56 FS70 FS80 FS83 FS85 FS90 100RX KM55 KM56 KM 85 KM90 KM110 KM130 + FS-KM 27Pcs replaceable thermoplastic blades: can replace the worn blades after long time use,put it on and start working,save your time and labor Quality material: made of quality plastic, these trimmer head is strong enough and not easy to break; durable and study to use, not easy to wear. Package includes: 27 x Polycut trimmer head blades