1 Lb Spool Studio Pro 63/37 Tin/Lead Solder (675B)-partially used $13.33 Brand Studio Pro Container Size 1 lb Unit Type lb Model studio pro 63/37 condition Used Studio Pro 63/37 Soldering Wire. This 1 lb spool is a partially used. Weighs 16.54 oz with plastic spool included in that weight.Not a full spool.