Compatible Trimmer Model: strimmer trimmer ART 23 SL (3600HA 5000), ART 23 SL(3600HA5070), ART 2300(3600HA5002), ART 23-28(3600HA5001), ART 26 SL (3600HA5100), ART 26 SL (000000), (HA5170), ART Easy. Spool Model: F016800569/F016800385. String Trimmer Replacement Spools 4.9m long, 1.65mm in diameter. Spool cover cap model: F016F04557 Premium Material: nylon cord, hard-wearing and cutting grass . Flexible and strong, allowing for the to and cushion on impact with hard surfaces. Workmanship: Professional cutting and automatic winding is and more time-saving than manual winding, reduces damage to the grass trimmer and does not block when mowing. Precaution: When using this product, wear protective goggles and long underwear to avoid injury caused by overflowing the wires. Remove the plug from the socket replacing, installing or removing accessories. Color: black, gray Material: Nylon, ABS Package Contents: 6pcs String Trimmer Replacement Spool 2pcs Spool cover cap Only the above package content, other are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.