2 twin XL Tribeca Living Floral 100% cotton sheet sets can be used on split king

2 sets twin XL floral sheets beige background w red green and yellow floral pattern. Includes 2 deep fitted sheets w extremely good elastic, 2 flat sheets and 2 standard pillow cases. Used for split king a handful of times. Very good condition The sheets weigh 8 lbs. Poshmark standard shipping label only covers 5 lbs. They will charge me an additional $13.50 for a mailing label to cover 8 lbs. For this reason, the price is higher than I would usually ask. Sorry!