Features: premium quality, heavy duty light weight polyethylene 3/16" bubble lined shipping envelopes. Strongest available envelopes & high quality shipping envelopes. Pressure sensitive seal that is tamper evident and secure. UPS, USPS, FedEx approved available in all sizes Made in USA product. Specifications: size: dimensions: 6.5" X 10" usable space: 6.5" X 9" lined with bubble wrap for protection. Quantity: 250 pieces.