What is the difference in Apple's Tips and the $6 tips on amazon?

[thorn blade]

I need to replace my apple pencil tip... it broke.

What is the difference between Apple's for $20 and this one for $6?
https://www.amazon.com/sspa/click?ie=UTF8&spc=MTozMTMxMjE2MDEzOTIzMDU2OjE3MDg5MjMyOTU6c3BfYXRmOjMwMDA1NzQyMDU4OTYwMjo6MDo6&url=%2FReplacement-Apple-Pencil-Generation-Accessories%2Fdp%2FB0CJ2JH1KF%2Fref%3Dsr_1_2_sspa%3Fdib%3DeyJ2IjoiMSJ9.In94FE3V8WWeZs9O4ad3hvvYmZAkC-ibm0sbmMWKIUnX4Z4453QYeIRVpYmPtW56IahPzugdUkR1z1_eCD95qT2eSi5uTMQwmZ1TI20OnvOCcaJdnPF-sJE9sQbbjZThIoZ7OifcGYSVH31I5G2mczyjfZ7mpFWSYeERXMpt9DgEBceh-EfTxXN_BFP6QjfC3zH-D0e0rOh3e4UHaQ7ZwJOuMxwyDi_uA-DBa1rYq4Q.RxrE3MvJImU_upP6YURwz81ov4eCgVI3YKpiWk4M-Mo%26dib_tag%3Dse%26keywords%3DApple%2BPencil%2BTips%26qid%3D1708923295%26sr%3D8-2-spons%26sp_csd%3Dd2lkZ2V0TmFtZT1zcF9hdGY%26psc%3D1

I have the 2nd Gen that sticks to the side via magnets on my iPad Pro.

[silk lagoon]

It’s just silicone so I’d assume there’s not much of a difference… just look at the reviews and see what people say about it before purchasing

[thorn blade]

I haven't noticed any issues with the ones I got.

[blazing quiver]

It's mostly apple tax