Lifetime cover is the gold standard, but don't assume your price stays low....

https://cashwpkr081.huicopper.com/lv-pet-insurance-what-does-fair-renewals-actually-mean-for-your-wallet

Lifetime cover is the gold standard, but don't assume your price stays low. When a complex cruciate repair hits £5,000, you will be glad you have the protection. However, insurers love to hike premiums at renewal, so never just auto-renew