Resonance Box with C-E-G-C Tuning Forks and Hammer Physics_Alternative Energy this 2-pack of 20oz Griffin-shape

this 2-pack of 20oz Griffin-shape borosilicate beakers adds a pouring spout for everyday home use

Micro Plus stethoscope features stainless steel chest piece and spare components for cardiovascular assessment and medical training

backed by dual screw fine-tuning and a 10mm diameter 5-inch stainless steel connecting rod

2 triple-tandems

Graphite lattice kit whose atoms and connecting rods assemble into planar carbon sheets

Resonance Box with C-E-G-C Tuning Forks and Hammer Physics_Alternative Energy this 2-pack of 20oz Griffin-shapeSolid wooden resonance box mounts four steel forks tuned to C 256Hz, E 320Hz, G 384Hz, and C' 512Hz a major chord array struck with the included hammer to amplify intervals and harmony.