Painting Supplies MRP, Mr Glass Balls (MRP-GB) PreviousMRP, Mr Metal Balls (MRP-MB) NextMRP Spare Dropper Bottle 17ml MRP, Mr Glass Balls (MRP-GB) MRP, Mr Glass Balls (MRP-GB) £2.75 MRP, Mr Glass Balls Add to a glass ball to your paints to help aid the mixing process. Recommend for waterbased paints as they won’t rust.40 per bottle Add To Cart Facebook0 Twitter Reddit Tumblr