The NA-810 may be small, but this is a high-performance antenna in a rugged and VERY flexible package.
Every Nagoya Antenna is individually tested and tuned for the supported frequency range it was made for.
This is a soft flexible antenna able to withstand more 'roughness' than a stock radio antenna. It is a highly flexible whip antenna able to bend 180 degrees while maintaining perfect VHF and UHF tuning.