For cutting solid cylindrical soil sample. Steel tube with cutting edges at lower end. An engraved index line ensures consistent volume of sample. With tommy bar, size 500 x 50 mm

Range 0 to 110 °C. comprises an aluminum tube, perforated at base, approximately 300 x 12 mm, with removable red alcohol filled thermometer.

Illustrating the nine planets which revolve around the Sun. Satellites of the planets are also shown. Mounted on base with 12 zodiac signs

With wooden handle, you don’t need to worry about hands scalded. Plating alloy welding head have longer life than ordinary welding head.

Hollow wooden sounding box 1290 x 130 x 110 mm, with mm scale, has two fixed bridges 72 cm apart over which wires are stretched. To one wire is fitted a spring balance reading to 100 N x 5 N and its tension can be adjusted by a winged nut and measured. Another wire passes over a pulley and can be loaded as desired. A third wire, for comparison, can have its tension adjusted by a wrest-pin. With 3 movable bridges, wrest-pin key, spring balance, and set of four wires of different diameters, each 1.5 meter long, without masses.