The Luthier's Rosin Powder is used in the violin maker's studio or repair shop:
Luthier and String Shop verification: Please include the name of your string shop or lutherie on checkout so we can verify your business. The Luthier's rosin powder will not be sold to clients who are not violin makers and repairers.
Discount: Purchase two or more products from the Luthier's Range and automatically receive a 10% discount. Use code LUTHIER on checkout.
It was lovely fine rosin powder and enough to last me about 100 years.