DMV Scleral Cup Large Contact... https://www.amazon.com/dp/B00S5LQAUU?ref=ppx_pop_mob_ap_share

I got these for travel. They’re great because are affordable and also double as insertion and removal tools.

Don’t need to replace them. just clean with warm soapy water.

My optometrist also gave me some for free. Doesn’t hurt to ask.