What is Reddit's opinion of Sun Wireless Noosy Sim Card Adapter Kits with Nano Sim Adapter and Micro Sim Adapter?

From 3.5 billion Reddit comments

Most phones from the last few years use Nano SIM cards-- the smallest option-- so they're likely to fit in a new phone.

You can look at your existing SIM card to see the size, or post the make/model here and maybe someone could look it up for you.

Most SIM cards from providers are 3-way SIM cards that can be punched out for either mini, micro, or nano, sizes. If your new phone needs a smaller size, you can punch out the smaller size from a 3-way SIM card.

If your new phone needs a larger SIM card, I've had good experience using these adapters: https://www.amazon.com/Noosy-Card-Adapter-Kits-Micro/dp/B01N3Z4IM9 . I keep a set on hand for 'just in case'.

If that all seems to complicated, follow justarandomkitten's advice and talk to customer support to make sure you get a new SIM card without jeopardizing your plan.