10 Pieces Weller ST Replacement Soldering Tips for WP25, WP30, WP35, WLC100 SP40L / SP40N Solder Iron Tip, (ACE Maker), recovery temperature very fast and hold temperature stable. There are 10 different shapes ( including a special bent conical tip good for drag soldering), this set helps when soldering on different projects. we will agree to return tips and full payment refund when if you dont satisfy the tips even after use. we will try our best to solve all your questions.