Excellent bridge pins, they really improve the sound (along with the synthetic bone bridge fret) but be careful, the original cheap plastic pins have a smaller diameter, so you need to widen the hole, just be careful not to overdo it, the problem is rather that the pins have a shallower groove for the string, or widen the hole only at the point of contact where the string passes through the bridge. Or better yet, entrust the replacement to a specialist.