The Zeiss Terra ED Rainguard is a replacement item for a broken or missing rainguard that came with the binocular originally. Don't get caught in the rain without it! Wet, smudgy lenses are never fun.
Zeiss offers a Limited Lifetime Transferable Warranty
which protects you against defects in workmanship or materials for the life of the Product. If a defect that is covered by this Warranty is found, Carl Zeiss will, at its option and without charge, either repair your Product or replace it with a Carl Zeiss product of comparable specifications and value. Additionally Zeiss offers A No-Fault Policy
for CONQUEST HD, VICTORY SF, and VICTORY HT binoculars (for up to 5 years after purchase, and only valid if your product is registered within 60 days of purchase.)
For Service and Repair questions call 800-441-3005