Welders can do it in all positions and with complete penetration. Hey, they don't like to brag but when you're good you're good. Measurements are approximately 3 1/2 tall by 3 1/4 inches wide. Also see photos for sizing. Made in USA. Ships from Florida, USA via USPS first class without tracking. Orders over $9.99 ship for free. Orders over $14.99 ship free with upgraded tracking.