
Wholesale Different Sizes Square Shape Empty Glass Jars for Jams. Customizable Sizes: Available in 50ml to 730ml capacities to meet specific storage needs. Custom Logo Printing: Supports customer-requested logo printing and Pantone color matching. High Quality Control: Professional QC ensures broken rate remains under 0.5% during transport. Fast Sample Delivery: Free samples available; new samples produced within 15 days after fee. Certified Safety: Holds CNAS, ISO, CE, FC, and SGS certifications for global compliance. Durable Glass Material: Square glass jars offer high transparency, good sealing, and leak-proof performance. Flexible Payment Terms: Accepts 30% T/T deposit, balance against B/L copies, or L/C at sight. High Production Capacity: Daily output of 50,000 pcs ensures timely delivery for large orders.