Description:By removing air before sealing canning food, this product helps to preserve the freshness of the food for a longer period of time.The air bubble measurer accurately measures air bubbles or jar space, ensuring spill-free preparation when making canning products.Specification：Material: PPBubble Popper Bubble Size: 226*31*3mm/8.86*1.2*0.12inch （LxWxH)Lid Lifter Size: 175*17*16mm/6.89*0.67*0.63inch （LxWxH)Color: redItem include: 2 x Red Bubble Popper Bubble. 2 x Lid Lifter Size