Envelopes are made of extra heavy-duty, 32 lb. Color: Kraft. HEAVY DUTY: Extra durable, 32 lb. PERMANENT SEAL: In addition to the clasp closure, the deep gumming on the flap can create a permanent seal.
Envelopes are made of extra heavy-duty, 32 lb. Color: Kraft. HEAVY DUTY: Extra durable, 32 lb. PERMANENT SEAL: In addition to the clasp closure, the deep gumming on the flap can create a permanent seal.