Test sewn. Industrial sewing machine Singer Professional LW103sf. Please see the images! Needle size 16, thread size 30. I folded thick leather and sewed two layers together! You can sew leather, canvas, etc. with ease! This is a rare free-arm type among industrial sewing machines. Leave thick materials that are difficult for home sewing machines to us! *No electricity. As accessories... - Folding dedicated table - Knee lift lever are included. There are scratches, stains, discoloration, peeling, cracks, etc., but the sewing function is still active. Please check the condition in the images. *To prevent trouble, I will ship it with the thread threaded as shown in the images. For those who understand, please purchase.