Image 1 of 1 100 Round cover slips 13mm diameter £10.40 Quantity: Add To Basket Added! You Might Also Like 100 Round cover slips 19mm diameter £8.20 Pins from £3.50 Balsam rods £3.00 Sold out Glass Petri Dish, 60mm £3.60 Sold out 100 Cover slips 18x18mm £6.00