GL33 is a Borosilicate color company dedicated to bringing versatile, new colors to the pallet for glassblowers. We have carefully crafted each color to ensure the best quality available. We are a small batch company, which means we batch 25-40lbs of each color each month, producing approximately 300-400lbs a month, depending on demand. Due to the limited volume produced by GL33, all colors are sold on the “first come,first served” basis. We greatly appreciate your interest in our colors and look forward to growing a business relationship with you.