40x65mm HeatSink for a common TO-3 Power Transistor.
20mm Deep. Main plate -3mm Thick
Weight: 39g $3 or less
29x50mm HeatSink for a common TO-220 Power semiconductor devices
16mm Deep +7mm Front Ribs. Main plate -1.8mm Thick
Weight: 25g $1.8 or less
Small 22x7.9mm HeatSink that can be used for variety of power-chips, LEDs or other small devices.
10mm Deep. Main plate -2mm+ Thick
Weight: 2.2g $0.30 or less