1.Ergonomic Design This string trimmer handle is ergonomically designed. It allows the operator to stand more upright than stooped while eating weeds and relieves the pressure on the waist during long term mowing. If your arms or back bend after installing the weedeater grip handle, simply slide the vise up or down into position. 2. but Sturdy Quality The lawn trimmer handle is made of lightweight aluminum material, no deformation, no rust and not easy to crack. It can be used for a long time. The weed eater grip adds only a small amount of weight, almost negligible. It can be directly attached to the main shaft, making handling and lifting easier. 3.Easy to Install and Use The weed eater handle is easy to install on the trimmer shaft. Use the included hex wrench to remove the four bolts and vise top, install the vise to the trimmer shaft, use the Allen wrench to tighten the vise to where you need it. The ergonomic trimmer grip measures 15 inches long by 5 inches wide. 4.Fit Most Trimmer Shafts This string trimmer handle for weed eater fits most trimmer shafts, such as heavy trimmers, light trimmers and weeders. It is simple and practical for yard maintenance, lawn care and landscaping. The lawn trimmer handle allows you to stand up straighter when clearing weeds, which can increase user comfort during operation.