To Use-Open the rosin. The new rosin is smooth. Note: A new rosin should first scrape one side with a hard object to facilitate rosin attachnent to the bow.
MOREYES Violin Rosin and Viola Rosin for Bows (1 PACK)
2PCS Violin Rosin,Cello Viola Rosin,Versatile Natural Rosin,High-Performance Violin Rosin,Natural Rosin Resin,Light Low Dust Rosin for Violin,Premium Rosin for Violin,String Music Instrument Accessory
2PCS Violin Rosin,Cello Viola Rosin,Versatile Natural Rosin,High-Performance Vio
Petz "Soloist" Rosin for Violin and Viola Violin Violin and Viola Rosin
3PCS Violin Rosin,Natural Violin Rosin Perfect for Professional and Beginner Musicians,Light Low Dust Rosin,Natural Rosin Resin,For Violin Viola and Cello Bows String Music Instrument Accessory