10" x 13" envelopes feature a resealable, Redi-Tac closure for a modern take on interoffice mail. Save time and keep office memos circulating without metal clasps or string-and-button closure. Redi-Tac envelopes open and close effortlessly after repeated use. Durable, 32 lb. brown Kraft stock holds up to prolonged daily use. Envelopes are formatted with five columns on the back side with narrow ruling for signatures. They are hole-punched to let you see at a glance if documents are enclosed.10" x 13" envelopes feature a resealable, Redi-Tac closure for a modern take on interoffice mail. Save time and keep office memos circulating without metal clasps or string-and-button closure. Redi-Tac envelopes open and close effortlessly after repeated use. Durable, 32 lb. brown Kraft stock holds up to prolonged daily use. Envelopes are formatted with five columns on the back side with narrow ruling for signatures. They are hole-punched to let you see at a glance if documents are enclosed.