Rectangular Refraction Acrylic Block, 75 x 50 x 18mm Material_Nylon Economical minute timer setting intervals

Economical minute timer setting intervals up to one hour via a top knob

and rolling stand for comprehensive anatomy instruction and patient education

autoclavable and thermal-shock resistant for daily lab use

Thousand-turn main coil on an insulated bobbin with 4mm socket terminals

Double-vessel copper calorimeter set with a 75 by 50mm inner cup on cork supports inside a 100 by 75mm outer shell and a slotted lid

Rectangular Refraction Acrylic Block, 75 x 50 x 18mm Material_Nylon Economical minute timer setting intervalsPairs 75 by 50mm with 18mm thickness on an acrylic rectangular refraction block, the lightweight beveled body giving safer per desk Snell's law and lateral displacement demos.