A trough compass consists of a long, narrow rectangular box, covered with glass. Inside the box, at its centre there is a magnetic needle resting on the pivot. Trough Magnetic Compass made of superior quality Anti magnetic Casting Material for durability. Size :- 15 cm Finishing:- Highly powder coated painted. Fitted with highly magnetized needle with inbuilt jewel pivot. Brass Stick on Dial to give better readability & accuracy. Packed in single piece wooden box Dimensions:- 18x5x4 cm Weight:- 400 gram