Nano to Micro SIM adapter will let you to convert a Nano size SIM card into a micro SIM card. It works with all Nano SIM cards. Nano to standard SIM adapter will let you to convert a Nano SIM card into a Standard SIM card.
eBay
SIM Card Adapter with 20 Slots Multi SIM Card Reader Mini Nano SIM with Independent Control Switch for iPhone 5/6/7/8/X/XS/XR/11
Aliexpress UK
4 in 1 Nano Micro SIM Card to SIM Card Adapter Converter Samsung iPhone. Convert your Nano or Micro SIM card to standard SIM card. Convert your Nano SIM card to Micro SIM card. 1x Nano SIM to Micro SIM Adapter.
eBay
5 in 1 Universal Mini SIM Card Adapter Storage Case Kits For Nano Micro SIM Card Memory Card Holder Reader Case Cover
Aliexpress UK
4 in 1 Nano Micro SIM Card to SIM Card Adapter Converter Samsung iPhone. Convert your Nano or Micro SIM card to standard SIM card. Convert your Nano SIM card to Micro SIM card. 1x Nano SIM to Standard SIM Adapter.
eBay
Sim Card Tray Slot Holder For Xiaomi Mi 11T Mi 11T Pro 21081111RG 2107113SG Reader Sim Card Adapter Replacement Parts
Aliexpress UK
Those are unique in size & should fit perfectly. If your simcard is made by cutting the edges of a standard sim or in very few cases if is not fitting properly then you may need to smoothen the edges of your simcard to fit on those adapters.
eBay
Hybrid Double Dual Sim Card Adapter Micro SD Sim Extension Adapter For Xiaomi/Redmi For Samsung/Huawei
Aliexpress UK
This card adapter set allows you to easily convert your Nano SIM card to a Micro or Standard SIM size, making it compatible with a wider range of devices. The adapter set is perfect for those who frequently switch between devices or need to use their SIM card in multiple phones.
eBay
20sets Nano SIM Card Adapter 4 In 1 Micro Sim Adapter With Eject Pin Key Retail Package For IPhone For Samsung Mobile Phone
Aliexpress UK
4 in 1 Nano Micro SIM Card to SIM Card Adapter Converter Samsung iPhone. Convert your Nano or Micro SIM card to standard SIM card. Convert your Nano SIM card to Micro SIM card. 1x Nano SIM to Micro SIM Adapter.
eBay
Sim Card Adapter Multi Card Device External Card Slot Apple Universal 20 Expansion Large Capacity Phone Card
Aliexpress UK
NOOSY 3 in 1 Nano Micro SIM Card to SIM Card Adapter Converter Samsung iPhone. Convert your Nano or Micro SIM card to standard SIM card. Convert your Nano SIM card to Micro SIM card. 1x Nano SIM to Micro SIM Adapter.
eBay
Universal TF Hybrid Sim Slot Dual SIM Card Adapter Micro SD Extender Nano Cato Android Phone
Aliexpress UK
Effortlessly manage your SIM card data with thisUSB SIM Card Reader and Cloner, designed to provide seamlessSMS backup and data copying forGSM/CDMA devices. Cloning and Writing Functionality: Easily copy, clone, and write data to your SIM card without any hassle.
eBay
Universal TF Hybrid Sim Slot Dual SIM Card Adapter For Micro SD Extender Nano Cato Android Phone
Aliexpress UK