7-Piece Glass Prism and Lens Set, 13mm Thick, with Wooden Storage Subcategory_Reflection and Refraction Thirty-two-inch advanced pulley demonstration set

Thirty-two-inch advanced pulley demonstration set with 8 singles

pairing a six-step 0 to 12V AC line with a continuous 0 to 12V DC line through color-coded lab terminals

Wooden wheel-and-axle simple-machine model on a 9

Many industrial and hobby hot wire foam cutters also use chromium wire

Premium Newton's cradle at 7

7-Piece Glass Prism and Lens Set, 13mm Thick, with Wooden Storage Subcategory_Reflection and Refraction Thirty-two-inch advanced pulley demonstration setSeven piece glass prism and lens set at 13mm thickness with all faces polished, the wooden storage box housing optical grade shapes for dispersion, refraction, and image formation work.