Our silicone shields come in 5 sizes that form the curl for the lift. The size of the silicone shield used will rely on the natural lash length and desired curl. The smaller the shield, the tighter the curl will be (stronger lift). The larger the shield, the more loose the curl will be. A good fit for a shield is when the lashes can reach above the middle of the shield. As our shields are made from durable silicone material. If properly disinfected, these shields can be reused. All sales are final.