Meldes Vibrating String Apparatus, consists of a string and an oscillator to generate different frequencies, Requires 6 V, 50 Hz power source, with 4mm plug leads, Weight (lb): 1.4, Length (in):11.0, Width (in):6.0, Height (in):3.0
Hydraulics Kit, 4 in 1, Contains: Scissor Lift, Platform Lifter, Cherry Picker, Excavator. Most models stand between 18 and 24 cm high when fully extended and can hold things like a glass of milk, toys, false teeth and other fun items
Red Litmus Test Paper, foolproof pH test to determine base, Test strip will turn blue if dipped into an alkaline solution (pH >7), Pocket-sized, lightweight vial, No color chart necessary, solution must be water-based