145mm Giant Large Sand Timer Safety Shoes drilling and welding

drilling and welding

100ml Capacity with Graduated Dropper

Eye - 1 Part

Gauging principle: Ultra Sonic Transducer

Large dump truck

145mm Giant Large Sand Timer Safety Shoes drilling and welding145mm tall, large sand timer 80mm square base (top and bottom) prevents rolling. 30 seconds has the time value embossed on the top. Large Sand Timer 30 seconds also has Blue Color coded grains of sand. Excellent for classroom projects and purposes, Group projects, educational purposes, laboratory demonstration. If you need custom order with different sizes design, please contact us. Safely Packaged to avoid being damaged during transportation.