sport training mask masker runnin sepeda gym olahraga alat latih nafas

READY,SIAP KIRIM GA PAKE PO!!! READY WARNA BLACK (KOSONG) GREEN PINK (FREE BAG MASKER!!!!) sertakan warna pada saat order dikolom keterangan y om,tante jika tidak akan kami kirim random,,trimakasi sblmnya 6 level trainig mask Sport Peak Resistance Training Mask lets you achieve the effects of high altitude training by regulating how much air you breathe in with the 4 Level Air Flow Regulator. You can then reduce the amount of training time by getting the same results in a shorter amount of time. You will also increase your lung capacity and will constantly push your training limits to the fullest! Features: Achieve the effects of a High Altitude Workout Efficiency when training, which helps decrease amp; maximizes your workout time 6-Level Resistance Valve System - Increase and Conditions Lung Capacity by Creating Pulmonary Resistance Simple Usage, Ultra-Lightweight, Anatomically Designed, Non-Slip Training Strap Strengthens the Diaphragm, Trains Breathing Muscles and Improves Overall Performance in any Sport One Size Fits Most - From 120 to 230 LBS