I have no complaints about the performance of these springs. The rubbery ones that most styluses have are stylus pens? - May stick to tablet/phone surface. The mesh on them helps the pen slide smoothly across the surface, but the mesh wears out too quickly. The way people hold the pen tends to create a "flat spot" in one spot. The price of the feathers themselves is reasonable, but the shipping costs are ridiculous. (Not related to the product review, I know.)
Samsung EJ-PN950BVEGUS Galaxy Note8 Replacement S-Pen: Orchid Gray - Precise and High-Quality Stylus
12 Review
Capacitive Universal Stylist Replacement Molichang
12 Review
Smartphone Samsung Galaxy S22 Ultra 12/256 GB, Dual: nano SIM eSIM, black phantom
173 Review
Smartphone Samsung Galaxy S22 Ultra 12/256 GB, Dual: nano SIM + eSIM, black phantom
31 Review
Logitech K380 Keyboard Sleeve - Felt Travel Bag Case, Wireless Keyboard Sleeve for Logitech K380 Bluetooth Multi-Device Keyboard (Felt- Deep Grey)
30 Review
8.3" Tablet Apple iPad mini 2021, 256 GB, Wi-Fi, pink
28 Review
Logitech K380 Multi-Device Wireless Keyboard Pink, English
33 Review
10.1" Tablet HUAWEI MediaPad T5 10 (2018), 3/32 GB, Wi-Fi + Cellular, Android 8.0, black
49 Review