Sonometer, 3 Wire Pattern (Each) The Earth & Beyond The marks should only be

The marks should only be around the outer edges as per the picture below

Supplied with mouthpiece and gig bag

the tapered handle is easy to grip

With ledge for pens and chalks

Set includes enough maths manipulative for use with 20 to 25 students

Sonometer, 3 Wire Pattern (Each) The Earth & Beyond The marks should only beA hollow wooden sounding box 1290 x 130 x 110 mm (length x width x height) provided with scales divided in mm between fixed bridges over which the wires are stretched. Complete with three movable bridges, wrist pin key and a set of four wires, length 1. 5 m of 20, 22, 24, 26 SWG The distance between the fixed bridges is 720 mm 47" x 4. 75" 5. 25" ( L x W x H ) Weights are not included. A hollow wooden sounding box 1290 x 130 x 110 mm (length x width x