Quality Park #10 Park Preserve Envelopes, 4.125 x 9.5 Inches, White Wove, 1000 Count Carton (11117B) #10 (4 1/8 x 9 1/2") Recycled Business Envelopes in 1000ct. Park Preserve Bulk Pack Manufactured from recycled, chlorine free paper stock. 100% post-consumer content. Bulk shipping containers become re-usable and highly desirable letter-size file boxes A Sustainable product line utilizing SFI-certified papers in the conversion of envelopes. #10 (4 1/8 x 9 1/2") Recycled Business Envelopes in 1000ct. Park Preserve Bulk Pack