TERRIBLE

The manufacturer states: Joyda Reusable Silicone Drinking Straws, Easy to Clean Without Brushes and Big Size Flexible Straws - 5 Pieces, BPA Free and No Rubber Taste (5 Colors)

UNIQUE ADVANCED DESIGN - Joyda reusable silicone drinking straws can come apart and then be tightly closed easily again. The half straw is transparent, you can see the color of the drinks.
HIGH QUALITY AND DURABILITY - Made of 100% food-grade silicone and BPA-free. These straws are durable and for any kind of drinks, also easy to use for your kids.
GREAT SIZE & FLEXIBILITY - Approx 9.05 inch Length / 0.37 inch Outside Diameter / Weight 14 g, soft-easy to bend. Color choice: Pink, Green, Orange, Blue, and Grey.
EASY TO CLEAN WITHOUT BRUSHES - Joyda silicone straws are easy to clean without brushes since they can come apart easily. These straws are portable and convenient with you anywhere.
100% MONEY BACK GUARANTEE - If you aren’t satisfied with these Silicone Drinking Straws, please let us know and we will give your money back!

But I would not recommend these to ANYONE! The take-apart feature allows air to get sucked into the straw, making it virtually impossible to drink anything.