Heavy Duty Black Coated Boss Head Clamp, up to 20mm Rods Item Type_Net Eight aluminum-shank tuning forks tuned

Eight aluminum-shank tuning forks tuned to scientific pitch (C4 = 256Hz) and ranging from 5 9/16 to 7 1/8 inches

Plano-cylindrical concave lens at 50 by 50mm with -17 diopter power

Greatly enlarged dicot leaf model displays cross and longitudinal sections of epidermis

Used as a red-to-yellow pH indicator transitioning between pH 3

Create an eruption of foam through the decomposition of hydrogen peroxide

Heavy Duty Black Coated Boss Head Clamp, up to 20mm Rods Item Type_Net Eight aluminum-shank tuning forks tunedHeavy duty die cast boss head with a black finish, 5 inches long, accepting rods up to 20 mm in diameter with grooved thumbscrews for secure right angle rod connections.