Description: Amber Light Rosin Solder Welding Additives Flux for Violin Viola Cello Low Dust Features: Beautiful amber color and nice packing. Avoids metallic residues to secure a dust-free adhesion and protect fine varnishes. Special designed with a gap on the rosin surface which makes rosining the bow easier. Comes with a protective container, you can do rosining easily without any hassle. Suitable for student, semi-professional or professional. Can be used on bows of violins or viola etc. Specification: Material: Rosin Viscosity: 1(Pa·S) Granularity: 1(um) Box Size: 4.5cm x 1.7cm x 2cm \/ 1.8'' x 0.7'' x 0.8'' Color: Amber Package includes: 1 x Solder Rosin Flux Details pictures: