1 Dozen Denim Aprons Heavy Duty Tool Work Shop 12 New. Optical Magnifier & Loupe Eyeglass. This is a new headband magnifier. This light-weight magnifier offers four magnifications in one. The magnifier is equipped with a 1.8X and 2.3X double lenses that if used together have a magnification of 3.7X. By bringing down the spare lens, the user can change the magnification. If the flip down loop is used, magnification goes to 4.8X power. The inner auxiliary lens flips up inside headband when not in use. The head band magnifier makes it easy to see fine objects and do precision inspection when necessary. Has an adjustable hook and loop strap making it easy to adjust to any head size 12 Denim Aprons. This is a new set of 12 denim aprons. Designed for the working jewelers by a working jeweler with 30 years of experience. The top of the apron is designed to be wider to protect more of the neck and chest. Each apron is 36" (91 cm) long to cover the lap adequately when sitting. All have one breast pocket and one waist pocket. Each measures approximately 28" x 36" (71 x 91 cm).