Laboratory Glassware Graduated Clear Brown Amber 250ml 500ml 1000ml Glass Reagent Duran Bottle with Blue Screw Lid Cap. Multiple Capacity Options: Available in 250ml, 500ml, and 1000ml sizes for various laboratory needs. Versatile Glass Colors: Offered in clear, brown, and amber glass to protect light-sensitive contents. Custom Surface Processing: Options include silk-screen printing, hot stamping, frosting, color painting, UV coating, and polishing. Customizable Sealing Types: Sealing options include dropper and rubber stopper configurations. OEM and ODM Services: Manufacturer supports both Original Equipment Manufacturer and Original Design Manufacturer requests. Free Sample Availability: Free samples provided with freight costs paid by the buyer. Comprehensive Export Certificates: Can provide Form E, Certificate of Origin, and FLGB export documents as needed. Wide Payment Methods: Accepts T/T, PayPal, Western Union, L/C, D/P, D/A, Credit Card, Cash, and Escrow.